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1. (WO1998004105) METHOD FOR MAKING PRINTED CIRCUITS AND RESULTING PRINTED CIRCUIT
PCT Biblio. Data
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Latest bibliographic data on file with the International Bureau
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Pub. No.:
WO/1998/004105
International Application No.:
PCT/CH1996/000262
Publication Date:
29.01.1998
International Filing Date:
18.07.1996
Chapter 2 Demand Filed:
30.01.1998
IPC:
G06K 19/077
(2006.01),
H01F 5/00
(2006.01),
H01F 41/04
(2006.01),
H05K 3/04
(2006.01)
G
PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19
Record carriers for use with machines and with at least a part designed to carry digital markings
06
characterised by the kind of the digital marking, e.g. shape, nature, code
067
Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
07
with integrated circuit chips
077
Constructional details, e.g. mounting of circuits in the carrier
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
5
Coils
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41
Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass
02
for manufacturing cores, coils or magnets
04
for manufacturing coils
H
ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
K
PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
3
Apparatus or processes for manufacturing printed circuits
02
in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
04
the conductive material being removed mechanically, e.g. by punching
Applicants:
DROZ, François
[CH/CH]; (CH)
Inventors:
DROZ, François
; (CH)
Agent:
GRIFFES CONSULTING S.A.
; Route de Florissant 81, 1206 Genève (CH)
Priority Data:
Title
(EN)
METHOD FOR MAKING PRINTED CIRCUITS AND RESULTING PRINTED CIRCUIT
(FR)
PROCEDE DE FABRICATION DE CIRCUITS IMPRIMES ET CIRCUIT IMPRIME FABRIQUE SELON CE PROCEDE
Abstract:
(EN)
A method for making a printed circuit (21;31) from a dielectric film (1) coated with one or more conductive metal layers (2, 2') is disclosed. The method comprises a step of marking out the various conductive paths (8) by mechanically machining grooves (7) in said conductive layer. Machining is carried out using a sharp cutting tool (5; 10) for cutting grooves between said conductive paths without removing any of the conductive material or driving it downwards. For example, a swaging punch (5) or a cutting table controlling a blade (10) may be used to cut grooves. The method is also suitable for making multilayer circuits and is particularly useful for producing flexible printed circuits, connectors, etc., as well as inductance coils (23) such as those used in smart cards (20; 30).
(FR)
Procédé de fabrication de circuit imprimé (21; 31) à partir d'un film diélectrique (1) revêtu d'une ou plusieurs couches conductrices métalliques superficielles (2, 2') comprenant une étape de démarcation des différentes pistes conductrices (8) par usinage mécanique d'entailles (7) dans ladite couche conductrice. L'usinage est effectué au moyen d'un outil de coupe tranchant (5; 10) permettant de couper des entailles séparant lesdites pistes conductrices, sans retrait de matière conductrice ni repoussement vers la profondeur. Par exemple, un poinçon d'étampage (5) ou une table de découpe commandant une lame (10) peut être utilisée pour tailler des entailles. Convient également pour des circuits multicouches. Particulièrement adapté pour circuits imprimés flexibles, pour connecteurs, etc. et pour bobines d'inductance (23) utilisées par exemple dans des cartes à puce (20; 30).
Designated States:
AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN.
African Regional Intellectual Property Organization (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language:
French (
FR
)
Filing Language:
French (
FR
)